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Individual Calculations July 2009 |
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| Helgadottir, Sigridur Bjorg Total change: 21.60 | |   |
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| Icelandic Team Champ div 1 | Akureyri | ISL | 2009-03-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1980 | 1645 | 0.50 | 3 | 0.14 | 15 | 2.10 | |
|  Fridjonsson, Julius | | | 1995 | ISL | 0.00 | 1 | -0.11 | 15 | -1.65 | | | Olafsson, David | f | | 1995 | ISL | 0.00 | 1 | -0.11 | 15 | -1.65 | |  Brynjarsson, Helgi | | | 1949 | ISL | 0.50 | 1 | 0.36 | 15 | 5.40 | |
Rc - average rating of rated opponents, Ro - rating of a player in a tournament, Rp - rating performance of an unrated player, W - points won in a tournament against rated opponents, N - total number of games against rated opponents, Change - change used for calculation according to formula, K - development coefficient, Kchg - rating change of a player calculated as (K * change) | | | | Reykjavík Open | Reykjavík | ISL | 2009-03-24 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1974 | 1645 | 2.50 | 9 | 1.38 | 15 | 20.70 | |
| | Cohen, Or | f | | 1995 | ISR | 0.00 | 1 | -0.11 | 15 | -1.65 | | | Berg, Runar | | | 1995 | ISL | 0.00 | 1 | -0.11 | 15 | -1.65 | | | Gardarsson, Hordur | | | 1951 | ISL | 1.00 | 1 | 0.86 | 15 | 12.90 | | | Bergsson, Stefan | | | 1995 | ISL | 0.00 | 1 | -0.11 | 15 | -1.65 | | | Filosof, Asi | | | 1986 | ISR | 0.00 | 1 | -0.12 | 15 | -1.80 | | | Ingason, Sigurdur | | | 1949 | ISL | 1.00 | 1 | 0.86 | 15 | 12.90 | | | Rodriguez Fonseca, Jorge | | | 1995 | ESP | 0.50 | 1 | 0.39 | 15 | 5.85 | | | Kristinsson, Bjarni Jens | | | 1953 | ISL | 0.00 | 1 | -0.14 | 15 | -2.10 | | | Brynjarsson, Helgi | | | 1949 | ISL | 0.00 | 1 | -0.14 | 15 | -2.10 | |
Rc - average rating of rated opponents, Ro - rating of a player in a tournament, Rp - rating performance of an unrated player, W - points won in a tournament against rated opponents, N - total number of games against rated opponents, Change - change used for calculation according to formula, K - development coefficient, Kchg - rating change of a player calculated as (K * change) | | | | Icelandic Chess School Champ 2009 | Reykjavik | ISL | 2009-05-23 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1766 | 1690 | 1.50 | 4 | -0.08 | 15 | -1.20 | |
| | Fridgeirsson, Dagur Andri | | | 1775 | ISL | 1.00 | 1 | 0.62 | 15 | 9.30 | | | Kristinardottir, Elsa Maria | | | 1775 | ISL | 0.00 | 1 | -0.38 | 15 | -5.70 | | | Sverrisson, Nokkvi | | | 1749 | ISL | 0.50 | 1 | 0.08 | 15 | 1.20 | | | Gudmundsdottir, Geirthrudur Ann | | | 1763 | ISL | 0.00 | 1 | -0.40 | 15 | -6.00 | |
Rc - average rating of rated opponents, Ro - rating of a player in a tournament, Rp - rating performance of an unrated player, W - points won in a tournament against rated opponents, N - total number of games against rated opponents, Change - change used for calculation according to formula, K - development coefficient, Kchg - rating change of a player calculated as (K * change) | | |
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